G Protein-Coupled Receptor Kinase 4 Is a Novel Prognostic Factor in Hepatocellular Carcinoma

Table 4

Accuracy of the prediction score of the nomogram for estimating the risk of OS.

Variable	Training cohort (95% CI)			Validation cohort (95% CI)
AUC	0.82	0.74	0.90	0.77	0.68	0.87
Cutoff score	32			78
Sensitivity (%)	86	72	88	44	32	71
Specificity (%)	70	47	72	100	32	100
Positive predictive value (%)	83	75	83	100	69	100
Negative predictive value (%)	75	61	86	52	52	70
Positive likelihood ratio	2.89	2.12	3.26	1	1.36	2.34
Negative likelihood ratio	0.2	0.23	0.43	inf	0.56	0.46